Rob is reportedly leaning on pal Katy Perry since calling it quits with Twigs. "They talk on the phone regularly and make sure to see each other when they both aren't away working," the source continued to E! News. "Katy has always been a good friend to Rob over the years and has been there for him emotionally. They have many common interests and also both know how to have fun and party. Although they have been flirtatiously romantic, they have still remained good friends. Rob loves that Katy is a free spirit and she has given him good advice when it comes to relationships. Since Katy has been busy on tour, her and Rob will FaceTime and text when possible. She wants to make sure he is doing OK. Rob knows how good of a friend she is and he was also there for her when she was going through her divorce. They lean on each other."